Star Trek: Enterprise ended 20 years ago, but time hasn't diluted my disappointment that Enterprise season 5 didn't happen. United Paramount Network (UPN) canceled Star Trek: Enterprisein season 4, concluding 18 years of executive producer Rick Berman's franchise stewardship that began with Star Trek: The Next Generation. However, there were plans in place for Star Trek: Enterprise season 5 from showrunner Manny Coto and the prequel series' creative team.